CMD_POWER_OFF
return cxusb_ctrl_msg(d, CMD_POWER_OFF, &b, 1, NULL, 0);
return cxusb_ctrl_msg(d, CMD_POWER_OFF, NULL, 0, NULL, 0);
{ CMD_POWER_OFF, 0 },
olpc_ec_cmd(CMD_POWER_OFF, NULL, 0, NULL, 0);